Hi, Require 100REL in ACK does not have any meaning. Require Header with other parameters like timer.. or any user defined parameters may be present. Thanks, Shyam
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of soma bhargava Sent: Tuesday, August 18, 2009 1:03 PM To: sip-implementors Subject: [Sip-implementors] Require header in ACK Hi All, As per RFC 3261 sec 8.2.2.3 Require: An ACK request for a 2xx response MUST contain only those Require and Proxy-Require values that were present in the initial request. and as per section 20 of RFC3261: Header field where proxy ACK BYE CAN INV OPT REG Require ar - c - c c c As per RFC 3262 sec 4 UAC Behavior: A Require header with the value 100rel MUST NOT be present in any requests excepting INVITE, although extensions to SIP may allow its usage with other request methods. the above 3 statements contradicts each other. Please suggest if we need to add require header in ACK or not? If yes then should it contain 100rel or not? Regards, Soma _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
